1,13
Table of n, a(n) for n=1..18.
Gunnar Brinkmann, Jan Goedgebeur, Jonas Hagglund and Klas Markstrom, Generation and properties of snarks, arXiv:1206.6690, 2012.
Sequence in context: A307735 A266483 A203364 * A001535 A300136 A274672
Adjacent sequences: A218884 A218885 A218886 * A218888 A218889 A218890
nonn
N. J. A. Sloane, Nov 27 2012
approved